Improvement in furnaces for evaporating sugar-juices



F. ROY.

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N. PETERS, Phowumqgmpher. wnmingmn, D. C.

UNITED STATES PATENT OEEieE.

FRIVIRIE ROY, OF ST. BERNARD PARISH, LOUISIANA.

IMPROVEMENT IN FURNACES FOR EVAPORAT!NG SUGAR-JUICES.

Specification forming part 0f Letters Patent No. 22,307, datcdlD'cccmbcr l-l, i858.

To all whom .it may concern,.-

Be it `known that I, F. ROY, ofthe parish of St. Bernard, State of Louisiana, have made a new and useful Improvement in the Mode of Setting Kettles for Boiling Cane-Juice; and I hereby declare the following is a full and exact description thereof, reference being had to the accompanying drawings and the letters of reference marked thereon, making a part of this speciication.

Figure l shows a ground plan representing that portion as seen below thelines z in Figs. 2 and 3, having the kettles supposed to be iu their places, as shown by the numbers 1 2 3 4, the bagasse-drying compartments A B C represented at an elevation of the line cutting the letter K in the sectional elevation of the drier C, Fig. 2. So far as the ground plan, the other arrangement of the sugar-house will require to be consulted to allow the construction, the position as seen in this figure not being necessarily required to follow for the erection to secure efficiency. The driers A B C are built, the same as chimneys, at a height of twenty-five or thirty Aand about'ten feet square, depending on the quantity of bagasse to be dried in a given time, this size given suitable for a medium quantity of cane to be ground. In the settingof the kett-les I have a furnace under each kettle with grates and nre-doors made and arranged similar to the usual manner of doing this portion of the work, the kettlesmounted over their furnaces, and have their support on the 'surrounding brick-work built under their upper ledges, with the tiling and other necessary arrangements the same as the common mode of setting kettles. In addition to this described solid pinning of brick-work, by which the kettles are usually mounted, I have a skeleton pinningreaehin gf rom the inside edges of the furnaces to the kettles, (seen in all numbers l 2 3 4,) the brick-work making the pinning designated by the letter i, as seen at No. 2, and the open spaces between the brickwork designated by the letter o, the flame passing through the spaces o and falls into the chambers h, surrounding the kettles, and the fines, also marked 71., which makes a connection ofthe different chambers around the kettles on the side of the brick-work, making the wall for all the kettles. I construct a flue (marked g) for the purpose of carrying off the heated gas from the kettle-chambers and conveying the same to the drying-chambers, and admitted therein through the openings K K K, leading from the chambers 7L to the flue g. I have flues X, with a damper for each, to

be closed or opened at pleasure, so the action.

ofthe heat from the several furnaces can be brought to bear on any particular kettle by the closing or the opening of the dampers, and thus secure a uniform evaporation. In-

stead ofthe Hue g, should it be desired, a

steam-boiler can be placed in the same position, and have the heat to act `on the boiler before being conveyed to the drying-chambers. On the reverse sides ofthekettles from X, and on the same level, I have a flue for each kettle, (marked 20,) for the purpose of cleansing the. chambers 7L when deposits of ashes are l ing furnaces f, grates s, ash-pits a, and upper fire-chambers, li, skeleton pinning i, all shown above h, (no reference given,) this portion being, as already stated, the same as usually constructed in the setting of kettles; the drying-chamber c sectional also, taken so from the line z through c, Fig. 1;]t, the flue connecting the chambers with the flue g, having dampers t, for the purpose of admitting or suspending the heated gas from the different chambers when required. In the employment of three drying-chambers the bagasse can be discharged into one, and the drying can go on in another during the timethe third is being emptied of the bagasse that has been already dried for use as fuel. The bagasse is admitted through the openings I? after being conveyed from the sugar-mill by the carrier, and lodging on the grating r, and after being dried taken from the chambers th rough doors Z).

Fig. 3 is a sectional transverse View showing ash-pit a, grates s, furnace-door d, furnace f, skeleton pinning i, upper flreehalnber, L, main iue g, connecting flue with nre-chiunber and g marked X, dempers for same, y,

flue above fire-doors u, the kettles represented'by Fig. 2.

Fig. 4 is a side elevation ofthe furnace only, main flue leading to the dri-ers g, ash-pits a, fire-doors d, Hue-doors u.

I do not olainnbroadiy and ofitselthe open setting of kettles; but

FRIVIRIE ROY.

Witnesses:

AUsTrN ROY, FRANCIS ARMSTRONG. 

